dbcve.org
AllegraApplication · Alltena

CVE-2024-5581

HIGH · 7.2 CVSS v3.0 Published 2024-11-22
Fix available
A fix is available. Upgrade to 7.5.2 or later.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Allegra unzipFile Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Authentication is required to exploit this vulnerability. The specific flaw exists within the unzipFile method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-23453.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The vulnerability exists in Allegra's unzipFile method which fails to validate user-supplied paths before file operations, enabling directory traversal attacks. An authenticated attacker can craft a malicious archive with paths containing '../' sequences to write files outside the intended extraction directory and achieve code execution as LOCAL SERVICE.

MitigationImplement strict path validation in the unzipFile method to ensure extracted paths resolve within the intended target directory, rejecting any path containing traversal sequences (../) or absolute paths. Apply principle of least privilege to the service account running the application.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
AllegraApplication
Affected:< 7.5.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Allegra installation version
    Locate the Allegra application and determine its installed version number. Common methods include checking the application UI about dialog, installation directory metadata, or version file. Compare this version against the affected range: versions below 7.5.2 are vulnerable.
    Affected if Installed version is lower than 7.5.2
  2. Verify unzipFile method is accessible
    Confirm that the unzipFile functionality is enabled and accessible within the Allegra application. This may involve checking application modules, plugins, or features that handle archive extraction.
    Affected if UnzipFile feature is enabled and available to authenticated users
  3. Confirm authentication mechanism status
    Determine whether user authentication is required to access the unzipFile functionality. Check if anonymous or low-privilege users can reach the file extraction feature.
    Affected if Authenticated access to unzipFile is possible and the application accepts user-provided archive files

Your environment is affected if Allegra version is below 7.5.2 AND the unzipFile method is accessible to authenticated users who can supply malicious archive files.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 7.5.2 or later
Fixed in 7.5.2
Interim mitigation

Implement strict path validation in the unzipFile method to ensure extracted paths resolve within the intended target directory, rejecting any path containing traversal sequences (../) or absolute paths. Apply principle of least privilege to the service account running the application.

Recommended fix High confidence

7.5.2

  1. Identify the currently installed Allegra version by checking the application interface or system configuration
  2. Download Allegra version 7.5.2 or later from the official vendor source
  3. Review release notes for any migration requirements or prerequisites
  4. Create a complete backup of the Allegra database and configuration files
  5. Stop the Allegra service before applying the update
  6. Install version 7.5.2 following the vendor's standard upgrade procedure
  7. Verify the unzipFile method now properly validates user-supplied paths
  8. Restart the Allegra service
Caveat Check vendor release notes for any breaking changes between your current version and 7.5.2

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Allegra Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
16.0 hours of engineering $2,840
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,544.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-5581 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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